What is the primary function of analgesic drugs?

Which of the following three scientists were awarded the Nobel Prize in $1945$ for the discovery and development of penicillin?
$(i)$ Alexander Fleming
$(ii)$ Louis Pasteur
$(iii)$ Walther Flemming
$(iv)$ Ernst Chain
$(v)$ Howard Florey
$(vi)$ Oswald Avery

Which of the following diseases is not caused by smoking?

The diseases which occur at irregular intervals and locations are known as

How can good health be maintained?

The period of adolescence is between the ages of ...... years.